GSM 4 click is a mikroBUS™ add-on board that features the u-blox SARA-G3 series 2.5G GSM/GPRS cellular quad-band module. The SARA-G3 module has a miniature LGA (Land Grid Array) form factor as well as an RF transceiver and a power amplifier. With the click you can send and receives calls, SMS, and data. It can also be used as a standalone device tied to a PC through the onboard USB port - no development environment is needed.

GSM 4 click also has a 3.5mm jack for connecting headphones and a microphone. It runs on either 3.3V or 5V power supply, has an antenna connector and a SIM card socket. It communicates with the target MCU through UART.

Using GSM 4 click

In addition to the click you will need an SMA antenna, a SIM card, and a microphone or headset if you want to send and receive calls.

Free u-blox software

u-blox offers m-centre, a free evaluation software for all their cellular modules. It is an easy to use graphical interface where you can configure the module and save the changes on EPROM. You can also view and edit SIM phonebook entries, send text messages, and communicate with the wireless module using AT commands.

Global coverage

GSM 4 click has global quad-band coverage. The 900MHz and 1800MHz frequencies are used in most parts of the world (Europe, Africa, Middle East, Asia). The 850MHz and 1900MHz are used in North, South and Central America.

Power management

Two most power efficient modes on the module are idle mode and power off mode.

In idle mode the module typically uses 0.3mA, which is ideal for battery powered IoT devices and home automation systems. When the power saving mode is enabled, the module automatically enters the low power idle-mode to reduce current consumption. When in power off mode the module typically uses 36µA.The module supports both IPv4 and IPv6 addresses.

Specifications